Cardiff, United Kingdom 14-Day Forecast
77°
Partly Cloudy right now
Today: high 79°, low 58°
Updated 2 hours ago
Cardiff weather for the next 14 days
Thursday, August 27
Light rain shower High 72° Low 59°Precipitation
86%
· 0.3 in
Max wind
13 mph
Humidity
86%
UV index
4 - Moderate
Sunrise / sunset
06:17 AM / 08:10 PM
Friday, August 28
Patchy rain nearby High 66° Low 58°Precipitation
88%
· 0.43 in
Max wind
17 mph
Humidity
91%
UV index
5 - Moderate
Sunrise / sunset
06:19 AM / 08:08 PM
Saturday, August 29
Light rain shower High 67° Low 60°Precipitation
90%
· 0.34 in
Max wind
25 mph
Humidity
92%
UV index
4 - Moderate
Sunrise / sunset
06:20 AM / 08:06 PM
Sunday, August 30
Patchy rain nearby High 70° Low 56°Precipitation
86%
· 0.34 in
Max wind
20 mph
Humidity
86%
UV index
5 - Moderate
Sunrise / sunset
06:22 AM / 08:04 PM
Monday, August 31
Patchy rain nearby High 64° Low 56°Precipitation
58%
· 0.03 in
Max wind
23 mph
Humidity
78%
UV index
4 - Moderate
Sunrise / sunset
06:24 AM / 08:02 PM
Tuesday, September 1
Patchy rain nearby High 67° Low 56°Precipitation
75%
· 0.17 in
Max wind
23 mph
Humidity
77%
UV index
5 - Moderate
Sunrise / sunset
06:25 AM / 07:59 PM
Wednesday, September 2
Sunny High 65° Low 50°Precipitation
11%
· 0.0 in
Max wind
14 mph
Humidity
75%
UV index
5 - Moderate
Sunrise / sunset
06:27 AM / 07:57 PM
Thursday, September 3
Patchy rain nearby High 68° Low 56°Precipitation
29%
· 0.0 in
Max wind
20 mph
Humidity
89%
UV index
5 - Moderate
Sunrise / sunset
06:28 AM / 07:55 PM
Friday, September 4
Patchy rain nearby High 69° Low 53°Precipitation
43%
· 0.02 in
Max wind
22 mph
Humidity
79%
UV index
6 - High
Sunrise / sunset
06:30 AM / 07:53 PM
Saturday, September 5
Sunny High 66° Low 52°Precipitation
10%
· 0.0 in
Max wind
12 mph
Humidity
74%
UV index
5 - Moderate
Sunrise / sunset
06:32 AM / 07:50 PM
Sunday, September 6
Overcast High 73° Low 56°Precipitation
16%
· 0.0 in
Max wind
14 mph
Humidity
78%
UV index
5 - Moderate
Sunrise / sunset
06:33 AM / 07:48 PM
Monday, September 7
Patchy rain nearby High 67° Low 58°Precipitation
72%
· 0.03 in
Max wind
15 mph
Humidity
93%
UV index
4 - Moderate
Sunrise / sunset
06:35 AM / 07:46 PM
Tuesday, September 8
Overcast High 61° Low 55°Precipitation
79%
· 0.18 in
Max wind
14 mph
Humidity
77%
UV index
4 - Moderate
Sunrise / sunset
06:36 AM / 07:44 PM
Cardiff 14-day outlook: the story
The warmest day of Cardiff's 14-day outlook is Wednesday, August 26 with a high near 79°F (26°C); the coolest night comes Wednesday, September 2, dipping to 50°F (10°C). Temperatures hold fairly steady from week to week. Highs over the next two weeks average 69°F (21°C), right in line with the typical August high of 68°F (20°C).
Precipitation is most likely on Wednesday 26, Thursday 27, Friday 28, Saturday 29 and beyond; the wettest day looks like Friday, August 28 with about 0.43 in (11.0 mm) expected. For the weekend, expect Saturday 67°F (19°C) and light rain shower / Sunday 70°F (21°C) and patchy rain nearby.
For typical conditions month by month, see the Cardiff climate & average temperatures guide.
Cardiff forecast questions
Will it rain in Cardiff this week?
The forecast currently shows meaningful precipitation chances on 9 of the next 14 days, peaking around Friday, August 28.
What will be the warmest day in Cardiff over the next 14 days?
Wednesday, August 26, with a forecast high near 79°F (26°C).
How accurate is a 14-day forecast for Cardiff?
Days 1-3 are highly reliable, days 4-7 capture the overall pattern well, and days 8-14 indicate trends rather than exact figures - check back as the date approaches; this page refreshes throughout the day.
Average temperatures in Cardiff by month
| Month | High | Low | Rain days | Precipitation | Sunshine | Humidity |
|---|---|---|---|---|---|---|
| January | 46° | 37° | 15 | 4.0 in | 4.1 h/day | 87% |
| February | 48° | 38° | 14 | 4.2 in | 5.3 h/day | 84% |
| March | 50° | 39° | 16 | 4.2 in | 6.9 h/day | 81% |
| April | 55° | 41° | 11 | 2.6 in | 9.8 h/day | 76% |
| May | 61° | 47° | 12 | 3.3 in | 11.1 h/day | 77% |
| June | 66° | 53° | 12 | 2.6 in | 11.7 h/day | 76% |
| July | 69° | 56° | 15 | 3.4 in | 11.4 h/day | 77% |
| August | 68° | 56° | 15 | 4.0 in | 10.0 h/day | 80% |
| September | 64° | 53° | 13 | 4.1 in | 8.5 h/day | 82% |
| October | 58° | 48° | 16 | 5.4 in | 6.3 h/day | 84% |
| November | 51° | 43° | 15 | 4.4 in | 4.4 h/day | 87% |
| December | 49° | 41° | 17 | 5.6 in | 3.3 h/day | 89% |
14-day forecasts nearby